Desk set and pencil sharpener



' 1,627,705 May 1927' K. A. JOHNSON DESK SET AND PENCIL SHARPENER Filed Jah. 2a, 1923 2 Sheets-Sheet 1 May 10 1927.

1,627,705 K. A. JOHNSON DESK SET AND PENCIL SHARPENER.

Filed Jan. 23. 1925 2 Sheets-Slfeet 8% ZJ M attonwq Patented May 10, 1927.

UNITED STATES PATENT OFFICE.

max A. .ronnson, or ems, NEBRASKA, assrenon or cine-Harrr 151 1.12? r. BEACH, or DOUGLAS coumry, manmsm.

DESK SE'I AND PENCIL SHARPElll'ER.

Application filed January 23, 1923. Serial No. 614,403.

The invention relates to desk sets and pencil Sharpeners, and has for its object to provide a device of this character wherein the desk set is provided with a motor driven pencil sharpener, which is operated upon the placing of the pencil within the device for sharpening purposes and stopped upon the removal of the encil.

A further ob ect is to provide a pencil sharpening device preferably used in connection with a desk set, said sharpening device comprising frustoconically shaped pencil cutting rollers, gear connectings between said rollersand worm and worm gear connection between the ar connections and a motor. Also to provide contact means actuated upon the insertion of the pencil in a guide neck for starting and stopping the motor.

the invention residesin the combinationv and arrangement of parts as hereinafter set forth, shown in the drawings, described and claimed, it being understood that chan es in the precise embodiment of the invention may be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawing:

Figure 1 is a perspective view of the desk set showing the device applied thereto.

Figure 2 is a vertical transverse sectional view through the desk pad, showing the pencil sharpening mechanism.

Figure 3 is a detail sectional view taken on line 3-3 of Figure 2.

Figure taken on line 4"4 of Figure 2. Y

Referring to the drawin s, the numeral 1 designates the base of the evice, which base is preferably rectangular shaped as shown, and provided with depressions 2, for the reception of various articles and ink wells 3. .The device is provided with a desk lamp 4, which will eliminate'the base. Supported on a bracket 5, disposed within the base, and havingfbearings therein are the pintles 6, of pencil sharpening cones 7, WhlCh cones have their upper ends rotatabl mounted .in bearings of abracket 8. The racket 8 and the bracket 5 support the cones during the rotation thereof during a (psencil sharpenin operation. The lower en of the cones With the above and other objects in view- 4 is a horizontal sectional view are provided with gears 9, which gears mesh with an intermediate gear 10. carried by a vertically disposed shaft 1 11, which is also rotatably mounted in the bracket 5. It will be seen that when the gear. 10 is rotated by a rotat on of the shaft 11, the gears 9 will rotate m the same direction for imparting rotation to the pencil sharpeningcones 7, thereby sharpening a pencil when placed in the pencil guide 12 and into engagement with the cones. The lower end of the shaft 11 1s provided with a worm gear 13, which gear meshes with the worm 14 carried by a motor shaft 15,"said shaft being rotated by a conventional form of electric motor 16. When a pencil is placed in the pencil guide 12 and forced downwardly, the spring contact arm,17 is forced outwardly as well as the spring arm 18. When the spring contact arm 17 is forced outwardly, its end 19 engages the contact member 20, which contact member is in circuit with the battery cuitwith the arm 18, and the motor 16, through the wire 22, and consequently the motor is started and the sharpening cones rotated for sharpenin the pencil. When the pencil is removed i'om the pencil guide 12, the spring'arm contact moves out of engagement with the contact member 20, thereby breakin the circuit and stopping the motor, an consequently conserving power. The base 1 is formed from insulating material, such for instance as hard rubber or obviated.

From the above it will be seen that a pencil sharpener is provided which is particularly adapted for use in connection with lass therefore short circuitin is g a g desk sets, is entirely concealed within the base of the desk set and is constructed in such a manner, whereby when the pencil is placed within the pencil guide and forced downwardly, the pencil sharpener motor is started, and after the sharpening operation, the pencil removed, the motor is immediately stopped.

, The invention having been set forth what is claimed as new and useful is A pencil sharpener comprising spaced vertically disposed sharpening cones in parallel relation to each other, a support beneath 'said cones, gears carried by the '21 and the motor 16, as well as in cirlower ends of the cones and smaller than the lower ends of the cones, a gear disposed between the cone gears in the plane thereof and meshing therewith, a shaft carried by said last named gear, means for rotating said shaft, said cones having their lower ends spaced whereby upon inserting a pencil between the cones it will be limited in its downward movement by engagement with the gear disposed between the cones.

In testimony whereof I hereunto affix my signature.

KIRK JOHNSON. 

